• 
• 
• 
• 
• 

---

The following table outlines the limits imposed by each ISP. Note: while this information is accurate at the time of writing, it should only be used as a guideline and you should contact your ISP to confirm the information is still accurate.

If you find these limits to restrictive for the size of your mailing list you will need to use the internal or alternative server.
 

Sending Limit	The rate at which you can send your messages via your ISP.  You should ensure your ISP Limit settings (under View > Options, Sending, Other Settings Settings) allow you to stay under this.
Max Recipients per Message	The number of destination email addresses that can be added to each message. If you are not sending separate messages to each recipient, ensure your BCC recipient count is well under this under View > Options, Sending)
Max Message Size	The total size of your message including all attachments and embedded images.  But realistically speaking you should consider 2MB to the be absolute maximum size of an email you would send to a recipient that you don't know personally

 

ISP	Sending Limit	Max Recipients per Message	Max Message Size
AOL	500 recipients per connection	100	16MB	More Information
AT&T Yahoo!		100	20MB	More Information
Charter	50 recipients per hour		10MB	More Information
Comcast	1000 recipients per day		10MB	More Information
Cox			10MB	More Information
Earthlink	1000 recipients per day			More Information
Gmail	500 recipients per day	500	10MB	More Information
Lycos	250 emails per day	25		More Information
MSN Hotmail	100 recipients per day		10MB	More Information
Road Runner	1000 recipients per day		5MB	More Information
Verizon	500 recipients per hour	100	2MB	More Information
Yahoo Online Mail	100 recipients per hour		10MB	More Information